316645556445 has 48 divisors (see below), whose sum is σ = 554035001520. Its totient is φ = 167283781632.

The previous prime is 316645556441. The next prime is 316645556467. The reversal of 316645556445 is 544655546613.

316645556445 is a `hidden beast` number, since 3 + 1 + 6 + 6 + 45 + 556 + 4 + 45 = 666.

316645556445 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 15448749849 + 301196806596 = 124293^2 + 548814^2 .

It is not a de Polignac number, because 316645556445 - 2² = 316645556441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 316645556391 and 316645556400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316645556441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27251277 + ... + 27262893.

It is an arithmetic number, because the mean of its divisors is an integer number (11542395865).

Almost surely, 2^316645556445 is an apocalyptic number.

It is an amenable number.

316645556445 is a deficient number, since it is larger than the sum of its proper divisors (237389445075).

316645556445 is a wasteful number, since it uses less digits than its factorization.

316645556445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294 (or 17291 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 54.

The spelling of 316645556445 in words is "three hundred sixteen billion, six hundred forty-five million, five hundred fifty-six thousand, four hundred forty-five".